Gravity Ferrous Interview Questions and Answers

Check if binary tree is balanced or not.

• A balanced binary tree has the height of left and right subtrees differ by at most 1.

• Recursively check the height of left and right subtrees and compare.

• Use a helper function to calculate the height of a subtree.

• Time complexity: O(nlogn) for a balanced tree, O(n^2) for a skewed tree.

Detect loops in a linked list.

• Use two pointers, one moving at a faster pace than the other.

• If there is a loop, the faster pointer will eventually catch up to the slower one.

• To detect the start of the loop, reset one pointer to the head and move both pointers at the same pace.

A Business Analyst (BA) will analyze business processes, identify areas for improvement, and recommend solutions to enhance efficiency and productivity.

• Analyze business processes

• Identify areas for improvement

• Recommend solutions to enhance efficiency and productivity

• Collaborate with stakeholders to gather requirements

• Create and maintain project documentation

• Facilitate communication between technical and non-technical te...read more

Analytics is the process of analyzing data to gain insights and make informed decisions.

• Analytics involves collecting, processing, and interpreting data

• It can be used in various fields such as business, healthcare, and sports

• Examples of analytics tools include Google Analytics, Tableau, and SAS

• Analytics can help identify patterns, trends, and opportunities for improvement

• It can also be used for predictive modeling and ...read more